[Bug inline-asm/66631] inability to clobber segment regs makes tls problematic

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66631

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Can you better describe your use case because this is not obvious what you are
trying to achieve here.